chemistry/stoichiometry/balancing/ How to BalanceS + O2 = SO2

How to Balance Sulfur + Oxygen gas → Sulfur dioxide

How to Balance: S + O2 → SO2

Type of Chemical Reaction: This is a combination reaction.

Word Equation: Sulfur + Oxygen gas → Sulfur dioxide

Balancing Strategies: In this combination reaction we have S and O2 combining to form SO2.

Carefully count the atoms up on each side of the equation and then make sure are equal.
For a complete explanation, watch:

About Balancing Chemical Equations

When balancing chemical equations our goal is to have the same number of each type of atom on both sides of the equation.

Only change the coefficients (these are the numbers in front substances).
Coefficients are the numbers in front of the molecule.
Never change the subscripts (the small numbers after elements).
Coefficients are the numbers in front of the molecule.

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